1996 Microchip Technology Inc.
Preliminary
DS40122B-page 1
High-Performance RISC CPU:
Only 35 single word instructions to learn
All single cycle instructions except for program
branches which are two cycle
Operating speed: DC - 20 MHz clock input
4096 x 14 on-chip EPROM program memory
192 x 8 general purpose registers (SRAM)
6 internal and 5 external interrupt sources
38 special function hardware registers
Eight-level hardware stack
Analog Peripherals Features:
Slope Analog-to-Digital (A/D) converter
- Eight external input channels including two
channels with selectable level shift inputs
- Six internal input channels
- 16-bit programmable timer with capture
register
- 16 ms maximum conversion time at maxi-
mum (16-bit) resolution and 4 MHz clock
- 4-bit programmable current source
Internal bandgap voltage reference
Factory calibrated with calibration constants
stored in EPROM
On-chip temperature sensor
Voltage regulator control output
Two comparators with programmable references
On-chip low voltage detector
Special Microcontroller Features:
Power-on Reset (POR), Power-up Timer (PWRT)
and Oscillator Start-up Timer (OST)
Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
Multi-segment programmable code-protection
Selectable oscillator options
-
Internal 4 MHz oscillator
-
External crystal oscillator
Serial in-system programming (via two pins)
PIC14000
28-Pin Programmable Mixed Signal Controller
Pin Diagram
Digital Peripherals Features:
22 I/O pins with individual direction control
High current sink/source for direct LED drive
TMR0: 8-bit timer/counter with 8-bit
programmable prescaler
16-bit A/D timer: can be used as a general
purpose timer
I2C serial port compatible with System
Management Bus
CMOS Technology:
Low-power, high-speed CMOS EPROM technology
Fully static design
Wide-operating voltage range (2.7V to 6.0V)
Commercial and Industrial Temperature Range
Low power dissipation (typical)
- < 3 mA @5V, 4 MHz operating mode
- < 300
A @3V (Sleep mode: clocks stopped
with analog circuits active)
- < 5
A @3V (Hibernate mode: clocks
stopped, analog inactive, and WDT disabled)
Applications:
Battery Chargers
Battery Capacity Monitoring
Uninterruptable Power Supply Controllers
Power Management Controllers
HVAC Controllers
Sensing and Data Acquisition
PDIP, SOIC, SSOP, Windowed CERDIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RA2/AN2
RA3/AN3
RD4/AN4
RD5/AN5
RD6/AN6
RD7/AN7
CDAC
SUM
VSS
RC0/REFA
RC1/CMPA
RC2
RC3/T0CKI
RC4
PIC14000
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RA1/AN1
RA0/AN0
RD3/REFB
RD2/CMPB
RD1/SDAB
RD0/SCLB
OSC2/CLKOUT
OSC1/PBTN
VDD
VREG
RC7/SDAA
RC6/SCLA
RC5
MCLR/VPP
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